Electronic unit casing
AssigneeNissan Motor Co., Ltd.
InventorKimihiro Ono
Life of this patent
Estimating the term…
Abstract
An elastic seal member is formed at the surface of a metal plate included in a gasket, which faces toward a lid, and another elastic seal member is formed at the surface of the metal plate facing toward a side wall. At the metal plate, the seal member is disposed further inward relative to the other seal member fitted in a seal groove. As bolts are tightened, the seal members become compressed and deformed, causing the seal member to press the metal plate against an exposed portion of an inner wall portion and the other seal member to press the metal plate against the lid.
Claims8
An electronic unit casing, comprising:
- a base portion on which an electronic unit is disposed, that cools the electronic unit;
- a side wall that is erected on the base portion so as to surround the electronic unit and adopts a plural-layer structure comprising a metal inner wall and a heat insulating outer wall;
- a lid that is fixed to an upper end of the side wall with a tightening jig and includes an electromagnetic wave shielding material at least partially exposed at a surface facing opposite the side wall;
- and
- a gasket held between the lid and the upper end of the side wall, wherein:
- the metal inner wall comprises an exposed portion exposed at the upper end of the side wall;
- and
- the gasket comprises a metal plate in a ring shape, a first elastic seal unit that presses one surface of the metal plate against the exposed portion and seals a gap formed between the lid and the metal plate when the tightening jig is tightened, and a second elastic seal unit that presses another surface of the metal plate toward the electromagnetic wave shield material exposed at the lid and seals a gap formed between the metal plate and the upper end of the side wall when the tightening jig is tightened.
An electronic unit casing, comprising:
- a base portion on which an electronic unit is disposed, that cools the electronic unit;
- a side wall that is erected on the base portion so as to surround the electronic unit and adopts a plural-layer structure comprising a metal inner wall and a heat insulating outer wall;
- a lid that is fixed to an upper end of the side wall with a tightening jig and includes an electromagnetic wave shielding material at least partially exposed at a surface facing opposite the side wall;
- and
- a gasket held between the lid and the upper end of the side wall, wherein:
- the metal inner wall comprises an exposed portion exposed at the upper end of the side wall;
- and
- the gasket comprises a metal plate in a ring shape, a first elastic seal means for pressing one surface of the metal plate against the exposed portion and sealing a gap formed between the lid and the metal plate when the tightening jig is tightened, and a second elastic seal means for pressing another surface of the metal plate toward the electromagnetic wave shield material exposed at the lid and sealing a gap formed between the metal plate and the upper end of the side wall when the tightening jig is tightened.
Dependencies are inferred from the claim text.